自燃焙焼法による原油脱硫廃触媒からのMo, Vの回収

抄録

Since spent catalyzer disposed from the desulfurization process of crude oil contains a considerable amountof combustible matters, such as crude oil, sulfur and carbon, the applicability of self-burning roast process wasexamined. The roasting of method of self-burning can be applied without any difficulty to roast spent catalyzer for indirectdesulfurization use with and without sodium carbonate addition. On the other hand, this method is only effectively applicable to spentcatalyzer of direct desulfurization use for the roasting with sodium carbonate addition, resulting a high extraction of Mo aswell as V. The merit and demerit of self-burning roast of spent catalyzer were discussed in the comparison with those of rotarykiln roasting of spent catalyzer.(Received August 11, 1983)